heat and a/c only blowing out of window vent
Sounds like one of your blend doors behind the dash is malfunctioning. You will probably want to take it to the dealer. Not a fun job.
The default for a failed HVAC system is Defrost & heat. There's the possibility that the vacuum line from the intake or from the reservoir is disconnected or broken, the check valve has failed or the control head is inop.
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